Word Origin & History
croonc.1400, originally Scottish, from M.Du. kronen "to lament, mourn," perhaps onomatopoeic. Originally "to bellow like a bull" as well as "to utter a low, murmuring sound" (c.1460). Popularized by Robert Burns. Sense evolved to "lament," then to "sing softly and sadly." Crooner, as a type of popular singer,
EXPANDis from 1930.
COLLAPSE